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vladimir2022 [97]
3 years ago
10

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 5 cos 3θ

Mathematics
2 answers:
Marianna [84]3 years ago
8 0
Graph the function, the axis of symmetry is in the x-axis
Aneli [31]3 years ago
4 0
First of all get a picture of what this looks like. Desmos is a pretty good graphing program, but anything that will do polar coordinates will work. 

Here is the graph.

What you can see is that this graph is symmetrical around the x axis.

When you talk about symmetry, you can think of it as taking a mirror and putting it where you think there is symmetry. If you can't tell the difference between the image and the real thing, then you have symmetry.

In this case, the mirror will show symmetry along the x axis and no where else.

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Ashley needs to buy some pencils. Brand A has 20 pencils for $6. Brand B has 40 pencils for $8.50. Based on the unit price, whic
Kruka [31]

Answer:

The answer to your question is Brand B

Step-by-step explanation:

Data

Brand A   amount of 20 pencils     cost $6

Brand B   amount of 40 pencils     cost $8.5

Process

1.- Calculate the unit price of each brand of pencils dividing the cost by the number of pencils

Brand A      6/20 = $0.3

Brand B      8.5/40 = $0.21

2.- Conclusion

Brand B is a better deal because you buy more pencils for a lower price.

3 0
3 years ago
A shop has an offer on jumpers as shown below.
KatRina [158]

Answer: £6.80

Step-by-step explanation:

Kara bought 5 jumpers for the price of 4.  Thus, multiply 4.8*5 = 24.  Then divide 24/4 to get 6.

Hope it helps <3

6 0
3 years ago
Read 2 more answers
Lorenzo went to the store with 20$. He bought some cans of soup for 2$ each and a gallon of milk for 3$. He had 1$ left over.
Dominik [7]
2s + 3 = 19
2s = 16
s = 8
He can buy 8 cans of soup.
5 0
3 years ago
determine the slope-intercept form of the equation of the line parallel to y=-4/3x + 11 that passes through the point (-6,2
Zielflug [23.3K]

is it...

y=-4/3x+10

........................

3 0
2 years ago
An equilateral triangle has a perimeter of 48 centimeters. If the triangle is dilated by a factor of 0.75, what is the length of
elena55 [62]
The length of each side is 28 cm. 
the perimeter of the equilateral triangle is 48 cm. To find each side of the original triangle, you do 48/3=16cm. since the triangle dilate by 0.75, then you can just do 0.75*16=12cm. then you have to add 12 to 16 because the triangle gets bigger by 12 cm. so 16+12=28 cm.
4 0
3 years ago
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